When people are plagued with regret, especially in the face of uncertainty or failure, they usually come to therapy haunted by their past. They often say things like:
“What if I had been born into a more loving family?”
“What if I had married that person instead?”
“What would my life look like if I had done everything right?”
These are all forms of counterfactual thinking—the mind’s attempt to construct alternate pasts where things unfolded more perfectly than they did, creating a parallel, glossier version of your life in your head. The emotional cost of mentally undoing and redoing past events may be imperceptible in the moment, but it compounds considerably over time.
According to a 2009 literature review, “counterfactual thinking has been linked to difficulty in coping with misfortune, judgments of blame and responsibility, depression and anxiety symptoms, feelings of regret, superstitious beliefs, overconfidence regarding the predictability of the past and expectations for future occurrences.”
Here are three psychological traps that this parallel life effect can pull you into, often without you realising it.
1. It Fuels Regret That Paralyses Action
The “what could have been” mindset is tied to upward counterfactual thinking—the tendency to imagine how life could have turned out better if only you had made different choices. While this is a common and sometimes useful mental process, research indicates that dwelling too often on these idealised versions of the past can have a cost.
A 2017 meta-analysis published in Clinical Psychology Review found a significant association between upward counterfactual thinking and symptoms of depression. Drawing from over 13,000 participants, the study showed that the more people engaged in mentally rewriting their past, the more likely they were to experience regret, self-blame, and emotional distress.
Regret can be useful when it leads to insight. But when it becomes chronic and ruminatory, it traps you in the past, depleting the energy you need in the present to move forward.
Here’s what to do instead:
- Rewrite your inner monologue. Say, “What can I do now?” instead of “What if I had…”
- Extract the lesson, not the blame. Ask, “What personal value or goal did this regret reveal?”
- Use that insight to motivate, not punish yourself. Not only will it alleviate emotional distress, but it also ensures that you gain something of tangible value, like a life lesson, from the negative experience. This can drive you to take action in new ways.
- Practice future-focused thinking. Instead of replaying what went wrong, focus on what’s still possible. This can help increase your levels of self-efficacy, slowly but surely dismantling your tendency to think counterfactually in the future.
For instance, when you remind yourself of a past relationship ending, thinking, “What would have happened if I hadn’t walked away that night? If I had reached out one more time or tried to fix things instead of letting go?” You’re not just revisiting a moment. You’re reopening a version of yourself that never got closure.
While you can’t rewrite your past, you can decide what you’ll do the next time you’re faced with a meaningful decision.
2. It Distorts Your Perception of Reality
Living in a parallel life—even just in your mind—can make the real one feel unbearably small. The more time you spend imagining how things could have been, the more idealised and unrealistic that alternate version becomes.
It’s a familiar loop: an unresolved event, a mind caught in replay mode, and a deep yearning for peace. But what often keeps people stuck isn’t the memory itself; it’s the fantasy of how it “should have gone.”
Research on “fantasy proneness” shows that some individuals are more vulnerable to this mental drift, easily absorbed in imagined realities that begin to feel more vivid than the one they’re living in. And it’s not just a passive habit.
A 2018 study published in Personality and Individual Differences found that fantasy-prone people, especially those who become deeply immersed in vivid imagined realities, are more likely to experience emotional distress when they slip into maladaptive coping strategies like rumination and self-blame. The more vividly we imagine “what should have been,” the more graphically we imagine the fallout of what is.
Here’s what you can try instead:
- Practice mental closing rituals. If your brain keeps revisiting a moment, write it down—everything you wish had happened. Then close the page. Physically putting it away (in a journal, box, or drawer) gives your mind permission to move on.
- Limit imagination loops through structure. Rumination thrives in idle space. Even 30 minutes of structure—walks, small creative tasks, or meaningful conversations—can interrupt the cycle and return you to the present.
- Practice mindfulness, not distraction. Instead of forcing the futile exercise of “trying not to think about it,” practice noticing the thought like a passing cloud. Say to yourself, “There’s that story again,” and gently return to what you were doing.
You’re not just mourning the past; you’re mourning a version of it that never existed. The contrast makes everyday life feel dull, people disappointing, and goals pointless. But the more you practice coming back to the present, the more life begins to feel real again. Not flawless or cinematic, but livable, meaningful, and yours to shape from here on out.
Living in a parallel life may feel compelling. It offers a sense of imagined control over past outcomes, especially those tied to loss, regret, or missed opportunities. But the more we engage with idealised versions of the past, the more disconnected we risk becoming from the present.
The past may shape who we are, but it doesn’t determine what’s possible next. To truly move forward, don’t focus on what “should” have happened, but instead consider, “What can I do now with what I still have?”
